Made with a combination of maple and bamboo, the BamBooBat® Hybrid Series bats features a proprietary mix of different types of bamboo to create a very durable and weight appropriate bat for players ages 13 years old to adult. Value and Performance: Proprietary mix high-quality bamboo to ensure maximum strength Includes a blend of maple wood for added surface hardness and stiffness on contact Balanced 271 turn model Manufacturer's Warranty: 100 days NOTICE : Baseball/Softball Bats are only eligible for return if they have not been used.